Considerable interest has been shown recently in the direct thiocyanogenation of aromatic amines. In the procedure2 followed by most investigators the amine (1 mole) and ammonium thiocyanate (2 moles) were dissolved in glacial acetic acid and bromine or a chloramide was slowly added. The liberated thiocyanogen substituted in the position para to the amino group or, if that were occupied, in the ortho position. Such ortho ...
